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$86+ Cheap flights from Philadelphia (PHL) to Houston

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — HOU
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Houston are usually found in September or August, booked 11 days in advance, depart on a Tuesday or Saturday and return on a Saturday

Cheap flight deals from Philadelphia to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Houston (HO1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 1, 2025.

Round-trip from

$185
(American Airlines)

One-way from

$86
(Cheapflightsfares)

Popular in

March

Cheapest in

September

Average price

$240
From Philadelphia to Houston
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One-way flight from Philadelphia to Houston
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Highest demand for flights based on searches. 25% potential increase in price ($96 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Philadelphia to Houston

Cheapest flights from Philadelphia to Houston
Explore the most affordable flight options available from Philadelphia to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/266:55 pmPHL - IAH
Nonstop3h 46mAmerican Airlines
Sat 8/27:05 amIAH - PHL
Nonstop3h 25mAmerican Airlines
Deal found 4/30$185
This Cheapflightsfares deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/66:00 amPHL - IAH
1 stop7h 23mSpirit Airlines
Thu 5/158:24 amIAH - PHL
1 stop5h 38mSpirit Airlines
Deal found 4/28$186
This Southwest deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/316:30 pmPHL - HOU
1 stop5h 45mSouthwest
Tue 6/35:25 amHOU - PHL
1 stop5h 10mSouthwest
Deal found 4/30$205
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/316:30 amPHL - IAH
1 stop6h 45mUnited Airlines
Tue 6/37:30 amIAH - PHL
Nonstop3h 26mUnited Airlines
Deal found 4/29$208
This CheapOair deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/309:00 amPHL - IAH
1 stop11h 51mMultiple Airlines
Sat 5/38:17 amIAH - PHL
1 stop8h 16mMultiple Airlines
Deal found 4/29$224
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/15:00 amPHL - HOU
1 stop5h 43mAmerican Airlines
Sat 7/126:30 pmHOU - PHL
1 stop5h 29mAmerican Airlines
Deal found 4/30$225
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/76:00 amPHL - IAH
1 stop5h 50mDelta
Wed 6/116:00 pmIAH - PHL
1 stop5h 59mDelta
Deal found 4/29$237
This Delta deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/115:30 amPHL - HOU
1 stop4h 45mDelta
Sat 6/216:40 pmHOU - PHL
1 stop5h 19mDelta
Deal found 5/1$237
This Frontier deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/165:15 amPHL - IAH
1 stop11h 38mFrontier
Wed 5/219:05 pmIAH - PHL
1 stop9h 35mFrontier
Deal found 4/29$250
This Sun Country Air deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2212:03 pmPHL - HOU
1 stop8h 06mSun Country Air
Mon 5/2611:34 amHOU - PHL
1 stop22h 25mSun Country Air
Deal found 4/30$485
This Alaska Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/178:15 amPHL - HOU
2 stops10h 45mAlaska Airlines
Mon 6/235:00 amHOU - PHL
2 stops10h 50mAlaska Airlines
Deal found 4/30$22,916

Cheapflights Fare Finder

Customize your flight search to find flights from Philadelphia to Houston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
Use the filters below to find and compare flights from Philadelphia to Houston that are best for you.

Fly from

Philadelphia

Fly to

Houston

Route

Depart

Return

Price

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Sat 7/26

6:55 pm-9:41 pm

Nonstop3h 46m

Houston George Bush Intcntl

Tue 8/5

7:05 am-11:30 am

Nonstop3h 25m

$185

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Mon 6/2

3:42 pm-6:21 pm

Nonstop3h 39m

Houston George Bush Intcntl

Sun 6/8

7:26 pm-11:51 pm

Nonstop3h 25m

$186

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Sat 5/31

6:30 pm-11:15 pm

1 stop5h 45m

Houston Hobby

Tue 6/3

5:25 am-11:35 am

1 stop5h 10m

$205

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Sat 5/31

6:30 am-12:15 pm

1 stop6h 45m

Houston George Bush Intcntl

Tue 6/3

7:30 am-11:56 am

Nonstop3h 26m

$208

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Tue 7/1

5:00 am-9:43 am

1 stop5h 43m

Houston Hobby

Sat 7/12

6:30 pm-12:59 am

1 stop5h 29m

$225

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Thu 5/15

5:15 am-10:37 am

1 stop6h 22m

Houston George Bush Intcntl

Fri 5/16

8:24 am-3:02 pm

1 stop5h 38m

$227

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Sat 6/7

6:00 am-10:50 am

1 stop5h 50m

Houston George Bush Intcntl

Wed 6/11

6:00 pm-12:59 am

1 stop5h 59m

$237

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Sat 7/12

6:45 am-12:01 pm

1 stop6h 16m

Houston Hobby

Sat 7/19

12:50 pm-9:58 pm

1 stop8h 08m

$237

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Fri 5/16

5:15 am-3:53 pm

1 stop11h 38m

Houston George Bush Intcntl

Wed 5/21

9:05 pm-7:40 am

1 stop9h 35m

$250

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Thu 5/22

12:03 pm-7:09 pm

1 stop8h 06m

Houston Hobby

Mon 5/26

11:34 am-10:59 am

1 stop22h 25m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 23 results
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The best insider tips for Philadelphia to Houston flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Philadelphia to Houston trip
Airlines
Spirit Airlines

Spirit's Big Front Seats offer 11 inches more legroom, ideal for added comfort.


Spirit's self-service bag drop saves time at the airport, enhancing efficiency.

Read more about Spirit Airlinesby Daniel Scheffler
United Airlines

United's Economy Plus offers extra legroom, enhancing comfort on domestic flights.


United's MileagePlus allows pooling miles, beneficial for family travel.

Read more about United Airlinesby Harriet Baskas
Airports
PHL

For a quick check-in, verify your airline's terminal before arriving. Terminals are spread out, and only B and C, and D and E are linked indoors.

Read more about PHLby Mark Chesnut
IAH

For a quick ride to downtown Houston, use Uber or Lyft from Terminals A, B, or C. Taxis are available at Terminal E.

Read more about IAHby Evie Carrick
Our travel experts
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Mark Chesnut

Mark Chesnut

Expert on PHL

Mark Chesnut

Mark Chesnut

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Read more

Best time to book a flight from Philadelphia to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Houston

How far ahead should I book a flight from Philadelphia to Houston?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Houston. Price data was last updated on April 25, 2025.

The best time to book flights from Philadelphia to Houston is 11 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Philadelphia to Houston?

Currently, September is the cheapest month in which you can book a flight from Philadelphia to Houston (average of $230). Flying from Philadelphia to Houston in March is currently the most expensive (average of $332). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to HOU?

Find hourly flight availability from Philadelphia to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

One of the essential ways to save on airfare from Philadelphia to Houston is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 39% on airfare.

What is the cheapest day to fly from Philadelphia to Houston?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Houston. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Philadelphia to Houston flight should consider departing on Monday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Houston by month

Plan your trip to Houston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Houston ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston when rainfall is around 3.2 in.

Temperature in Houston by month

Plan your trip to Houston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Houston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Houston. Reviews last updated May 1, 2025.
Read through reviews of airlines operating flights from Philadelphia to Houston, such as Alaska Airlines, Southwest and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,294 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Philadelphia to Houston?

    Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Philadelphia to Houston. 6 airlines have flights from Philadelphia to Houston on a regular basis. Booking flights from Philadelphia to Houston should not be difficult; the airport handles an average of 0 outbound flights to Houston per day.

  • What are the cheapest airlines flying from Philadelphia to Houston round-trip?

    Flying on American Airlines is currently your cheapest option to Houston, with prices starting at $185. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and United Airlines, with the lowest prices starting at $188 and $202, respectively. These flights start at 34% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Philadelphia to Houston one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $86. Users have also found prices from $120 and $120 on Frontier and Southwest, respectively.

  • Can I find deals for flights from Philadelphia to Houston that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Houston.

  • Can I find deals for business class flights from Philadelphia to Houston?

    Yes. Cheapflights offers flight deals from Philadelphia to Houston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to Houston?

    Currently, September is the cheapest month in which you can book a flight from Philadelphia to Houston (average of $230). Flying from Philadelphia to Houston in March is currently the most expensive (average of $332). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Philadelphia to Houston

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Philadelphia to Houston

Discover the top 6 airlines that operate flights from Philadelphia to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$58Average$157FlexibilityNo cancel feeOn-time65%
FrontierCheapest$110Average$183FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$151Average$434FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$156Average$401FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$317FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$217Average$434FlexibilityNo cancel feeOn-time63%

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